Display screen or a portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or a portion thereof withgraphical user interface according to a first embodiment of our design;and,

FIG. 2 is a front view of a display screen or a portion thereof withgraphical user interface according to a second embodiment of our design.

The dashed and dot-dashed broken line showings of portions of a displayscreen and other features in the figures are environmental only and formno part of the claimed design.

The areas including stipple-fill represent areas having a differentappearance.

CLAIM The ornamental design for a display screen or a portion thereofwith graphical user interface, as shown and described.